Home / 3,261.36-4,891.98-1,313.52

Finding the Fourth Proportional to 3,261.36, 4,891.98 and 1,313.52

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Solution

The fourth proportional to 3,261.36, 4,891.98 and 1,313.52 is: 1,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.36 : 4,891.98 = 1,313.52 : x
  2. Step 2: Convert to fraction form
    3,261.36/4,891.98 = 1,313.52/x
  3. Step 3: Cross multiply
    3,261.36x = 4,891.98 × 1,313.52
  4. Step 4: Simplify right side
    3,261.36x = 6,425,713.57
  5. Step 5: Solve for x
    x = 6,425,713.57/3,261.36
  6. Step 6: Final answer
    x = 1,970.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.